The White House said on Monday ahead of the scheduled talks that the meeting between the two leaders, which will focus largely on North Korea’s possible denuclearization, has moved “more quickly than expected.” As a result, Mr. Trump will plan to return to Washington, D.C., about 15 hours sooner than the scheduled end of the summit, which had been set for Wednesday afternoon.

After their greeting, the leaders were scheduled to have a one-on-one meeting, which could last up to two hours. Translators will be joining them.

Here’s guidance from the White House on what to expect for Tuesday’s summit on Sentosa Island, Singapore: